
.slideshow-container {
    text-align: center; /* 设置内容居中 */
    margin: auto; /* 水平居中 */
    height: 100vh; 
    position: relative;
  }

  .mySlides {
    display: none; /* 初始隐藏轮播图片 */
  }

  .mySlides img {
    width: 100%; /* 图片宽度充满轮播容器 */
    height: 100vh; 
  }

  .prev {
    left: 0; /* 左侧按钮位置 */
  }

  .next {
    right: 0; /* 右侧按钮位置 */
  }
  .mySlides {
	display: none;
  }
  
  .fade {
	animation-name: fade;
	animation-duration: 1.5s;
  cursor: pointer;
  }
  
  @keyframes fade {
	from {opacity: .4}
	to {opacity: 1}
  }
  
  .prev, .next {
	cursor: pointer;
	position: absolute;
	width: auto;
	padding: 1rem;
	margin-top: -1.375rem;
	font-weight: bold;
	font-size:2.2rem;
	transition: 0.6s ease;
	border-radius: 0 .1875rem .1875rem 0;
	user-select: none;
  color: rgb(255, 255, 255);
  position: absolute;
  top: 50%;
  }

  .next {
	right: 0;
	border-radius: .1875rem 0 0 .1875rem;
  }
  
  .prev:hover, .next:hover {
	color: #ff6900;
  }

#scrollToTopBtn{
    display: none; /* 默认隐藏 */
    width: 2.625rem;
    height: 3.875rem;
    background-image: url(../image/totop.png);
    background-size: 100% 100%;
    background-position: 50%;
    position: fixed;
    left: calc(50% + 38.3125rem);
    bottom: 9.375rem;
    transform: translateX(-100%);
    z-index: 1000;
    cursor: pointer;
    opacity: 1;
}
.navbar.scrolled {
  background-color: rgba(0, 0, 0, 0.5) !important;
  
}

.bb{  
  cursor: pointer;
  z-index: 10;
  animation: bb 2s linear 0s infinite;
  width: 60px;
  height: 50px;
  background: url(../image/arr_btm.png) no-repeat center;
  position: fixed;
  left: 50%;
  bottom: 27px;
}

@keyframes bb {
  0% {
    transform: translate(-50%, 0);
    opacity: 0;
}
20% {
    transform: translate(-50%, 3px);
    opacity: 1;
}
80% {
    transform: translate(-50%, 10px);
    opacity: 1;
}
90% {
    transform: translate(-50%, 10px);
    opacity: 0;
}
100% {
    transform: translate(-50%, 10px);
    opacity: 0;
}
}

.content-container {
  display: none;
  padding: 20px;
  text-align: center;

}
.content-container.act{
  display: block;
}
.content-container img {
  max-width: 100%;
  
  height: auto;
}
.content-container h2, .content-container p {
  margin: 10px 0;
}




.cd-intro {
  position: relative;
  height: 100vh;
  width: 100%;
  display: table;
  overflow: hidden;
}

.cd-intro-content {
  display: table-cell;
  vertical-align: middle;
  text-align: center;
  padding: 0 5%;
  /* background: #2e416a; */
  background-image: url(../image/banner-1.jpg);
  background-size: cover;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
.cd-intro-content h1 {
  font-size: 3rem;
  color: #ffffff;
}
.cd-intro-content p {
  font-size: 1.6rem;
  font-weight: 700;
  line-height: 1.4;
  margin: 1em 0;
  color: #f8f8f8;
}
.cd-intro-content .action-wrapper {
  display: inline-block;
}
.cd-intro-content .action-wrapper::after {
  clear: both;
  content: "";
  display: table;
}
.cd-intro-content .action-wrapper > * {
  float: left;
}


.cd-btn {
  display: inline-block;
  padding: 1em 1.2em;
  font-size: 1rem;
  color: #ffffff;
  text-transform: uppercase;
  font-weight: bold;
  letter-spacing: 1px;
  background-color: #202e4a;
  border-radius: .25em;
  margin-right: 1.5em;
}
.cd-btn:nth-of-type(2) {
  margin-right: 0;
}
.cd-btn.main-action {
  background-color: #fb5e58;
}


.cd-intro-content h1,
.cd-intro-content h1 span,
.cd-intro-content p,
.cd-intro-content .cd-btn {
 /* 设置元素透明度为0 */
 opacity: 0;
/* 设置动画持续时间为0.8秒 */
  -webkit-animation-duration: 0.8s;
  -moz-animation-duration: 0.8s;
  animation-duration: 0.8s;
/* 设置动画延迟时间为0.3秒 */
  -webkit-animation-delay: 0.3s;
  -moz-animation-delay: 0.3s;
  animation-delay: 0.3s;
/* 设置动画填充模式为forwards */
  -webkit-animation-fill-mode: forwards;
  -moz-animation-fill-mode: forwards;
  animation-fill-mode: forwards;
}
.no-cssanimations .cd-intro-content h1, .no-cssanimations
.cd-intro-content h1 span, .no-cssanimations
.cd-intro-content p, .no-cssanimations
.cd-intro-content .cd-btn {
  opacity: 1;
}
@media only screen and (min-width: 768px) {
  .reveal.cd-intro-content h1 {
    -webkit-transform: translateY(5px);
    -moz-transform: translateY(5px);
    -ms-transform: translateY(5px);
    -o-transform: translateY(5px);
    transform: translateY(5px);
  }
}

@media only screen and (min-width: 1170px) {
  .reveal.cd-intro-content p {
    padding: 1em 1.6em;
  }
}
@media only screen and (min-width: 768px) {
  .reveal.cd-intro-content .action-wrapper .cd-btn {
    display: inline-block;
    margin: 0 0 0 1em;
  }
}

@-webkit-keyframes cd-reveal-up {
  0% {
    opacity: 1;
    -webkit-transform: translateY(100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
  }
}
@-moz-keyframes cd-reveal-up {
  0% {
    opacity: 1;
    -moz-transform: translateY(100%);
  }
  100% {
    opacity: 1;
    -moz-transform: translateY(0);
  }
}
@keyframes cd-reveal-up {
  0% {
    opacity: 1;
    -webkit-transform: translateY(100%);
    -moz-transform: translateY(100%);
    -ms-transform: translateY(100%);
    -o-transform: translateY(100%);
    transform: translateY(100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -o-transform: translateY(0);
    transform: translateY(0);
  }
}
@-webkit-keyframes cd-reveal-down {
  0% {
    opacity: 1;
    -webkit-transform: translateY(-100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
  }
}
@-moz-keyframes cd-reveal-down {
  0% {
    opacity: 1;
    -moz-transform: translateY(-100%);
  }
  100% {
    opacity: 1;
    -moz-transform: translateY(0);
  }
}
@keyframes cd-reveal-down {
  0% {
    opacity: 1;
    -webkit-transform: translateY(-100%);
    -moz-transform: translateY(-100%);
    -ms-transform: translateY(-100%);
    -o-transform: translateY(-100%);
    transform: translateY(-100%);
  }
  100% {
    opacity: 1;
    -webkit-transform: translateY(0);
    -moz-transform: translateY(0);
    -ms-transform: translateY(0);
    -o-transform: translateY(0);
    transform: translateY(0);
  }
}


.mask.cd-intro-content h1 {
  position: relative;
  padding-bottom: 10px;
  font-size: 1.875rem;
  opacity: 1;
  font-weight: 700;
  color: transparent;
  overflow: hidden;
}
.mask.cd-intro-content h1::after {
  /* this is the animated text */
/* 设置content属性为data-content属性的值 */
  content: attr(data-content);
/* 设置绝对定位 */
  position: absolute;
/* 设置顶部边距为0 */
  top: 0;
/* 设置左边距为0 */
  left: 0;
/* 设置高度为100% */
  height: 100%;
/* 设置宽度为100% */
  width: 100%;
/* 设置颜色为白色 */
  color: #ffffff;
/* 设置webkit浏览器动画名称为cd-reveal-up */
  -webkit-animation-name: cd-reveal-up;
/* 设置moz浏览器动画名称为cd-reveal-up */
  -moz-animation-name: cd-reveal-up;
/* 设置动画名称为cd-reveal-up */
  animation-name: cd-reveal-up;
/* 设置webkit浏览器动画填充模式为backwards */
  -webkit-animation-fill-mode: backwards;
/* 设置moz浏览器动画填充模式为backwards */
  -moz-animation-fill-mode: backwards;
/* 设置动画填充模式为backwards */
  animation-fill-mode: backwards;
}
.mask.cd-intro-content h1 span {
  position: relative;
  display: inline-block;
  opacity: 1;
}
.mask.cd-intro-content h1 span::before {
  content: '';
  /* 绝对定位 */
  position: absolute;
  /* 距离顶部100%加上8px */
  top: calc(100% + 8px);
  /* 距离左边-1em */
  left: -1em;
  /* 高度为2px */
  height: 2px;
  /* 宽度为100%加上2em */
  width: calc(100% + 2em);
  /* webkit浏览器动画 */
  -webkit-animation: cd-loading-mask 1s 0.3s both;
  /* firefox浏览器动画 */
  -moz-animation: cd-loading-mask 1s 0.3s both;
  /* 通用动画 */
  animation: cd-loading-mask 1s 0.3s both;
}
@media only screen and (min-width: 768px) {
  .mask.cd-intro-content h1 {
    padding-bottom: 20px;
  }
  .mask.cd-intro-content h1 span::before {
    top: calc(100% + 18px);
  }
}

.mask.cd-intro-content p {
  position: relative;
  margin: 0;
  padding: 10px 0 0;
  width: 50vw;
  text-align: center;
  margin: 0 auto;
  -webkit-animation-name: cd-reveal-down;
  -moz-animation-name: cd-reveal-down;
  animation-name: cd-reveal-down;
}
@media only screen and (min-width: 768px) {
  .mask.cd-intro-content p {
    padding-top: 20px;
  }
}

.mask.cd-intro-content h1::after,
.mask.cd-intro-content p {
  -webkit-animation-duration: 0.4s;
  -moz-animation-duration: 0.4s;
  animation-duration: 0.4s;
  -webkit-animation-delay: 0.7s;
  -moz-animation-delay: 0.7s;
  animation-delay: 0.7s;
}

.mask.cd-intro-content .action-wrapper {
  overflow: hidden;
}
.mask.cd-intro-content .action-wrapper .cd-btn {
  opacity: 1;
  margin: 0 0 0 1.5em;
}
.mask.cd-intro-content .action-wrapper .cd-btn:first-of-type {
  margin-left: 0;
}

/* 定义webkit浏览器中的动画 */
@-webkit-keyframes cd-loading-mask {
  /* 动画开始和结束时，X轴缩放为0 */
  0%, 100% {
    -webkit-transform: scaleX(0);
  }
  /* 动画进行到40%和60%时，X轴缩放为1 */
  40%, 60% {
    -webkit-transform: scaleX(1);
  }
}
/* 定义mozilla浏览器中的动画 */
@-moz-keyframes cd-loading-mask {
  /* 动画开始和结束时，X轴缩放为0 */
  0%, 100% {
    -moz-transform: scaleX(0);
  }
  /* 动画进行到40%和60%时，X轴缩放为1 */
  40%, 60% {
    -moz-transform: scaleX(1);
  }
}
/* 定义标准浏览器中的动画 */
@keyframes cd-loading-mask {
  /* 动画开始和结束时，X轴缩放为0 */
  0%, 100% {
    -webkit-transform: scaleX(0);
    -moz-transform: scaleX(0);
    -ms-transform: scaleX(0);
    -o-transform: scaleX(0);
    transform: scaleX(0);
  }
  /* 动画进行到40%和60%时，X轴缩放为1 */
  40%, 60% {
    -webkit-transform: scaleX(1);
    -moz-transform: scaleX(1);
    -ms-transform: scaleX(1);
    -o-transform: scaleX(1);
    transform: scaleX(1);
  }
}